<template>
	<view v-if="goods_info.goods_name" class="goods-detail-container">
		<!--  轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true">
      <swiper-item v-for="(item,i) in goods_info.pics" :key= "i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>
    </swiper>
    <!--  商品信息区域 -->
    <view class="goods-info-box">
      <!--  商品价格 -->
      <view class="price">￥{{goods_info.goods_price}}</view>
      <!--  商品信息主体区域 -->
      <view class="goods-info-body">
        <!--  商品的名字 -->
        <view class="goods-name">{{goods_info.goods_name}}</view>
        <!--  收藏 -->
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <!--  运费 -->
      <view class="yf">快递：免运费</view>
    </view>
    <!--  商品详情信息 -->
    <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    
    <!--  商品导航组件区域 -->
    <view class="goods_nav">
      <uni-goods-nav :fill="true" :options="options" :buttonGroup="buttonGroup" @click="onClick" @buttonClick="buttonClick"></uni-goods-nav>
    </view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				goods_info: {},
        // 左侧按钮组的配置对象
        options: [{
          icon: 'shop',
          text: '店铺'
         },
         {
           icon: 'cart',
           text: '购物车',
           info: 2
         }],
         // 右侧按钮组的配置对象
         buttonGroup: [{
           text: '加入购物车',
           backgroundColor: '#ff0000',
           color: '#fff'
         },
         {
           text: '立即购买',
           backgroundColor: '#ffa200',
           color: '#fff'
         }]

         
			};
		},
    onLoad(options) {
      // 获取商品的 id 
      const goods_id = options.goods_id
      // 调用获取商品数据的方法
      this.getGoodsDetail(goods_id)
    },
    methods: {
      // 定义请求商品详情数据的方法
      async getGoodsDetail(goods_id) {
        const { data: res } = await uni.$http.get('/api/public/v1/goods/detail', { goods_id })
        if(res.meta.status !== 200) return uni.$showMsg()
        // 为 data 中的数据赋值
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g,'<img style="display:block;"').replace(/webp/g,'jpg')
        this.goods_info = res.message
      },
      // 实现轮播图的预览xiaoguo
      preview(i) {
        // 调用 uni.previewImage() 方法预览图片
        uni.previewImage({
          // 预览是，默认显示图片的索引
          current: i,
          // 所有图片 url 地址的数组
          urls: this.goods_info.pics.map(x => x.pics_big)
        })
      },
      // 左侧按钮的点击事件处理函数
      onClick(e) {
        if(e.content.text === '购物车') {
          // 切换到购物车页面
          uni.switchTab({
            url: '/pages/cart/cart'
          })
        }
      }
    }
	}
</script>

<style lang="scss">
  swiper {
    height: 750rpx;
    image {
      width: 100%;
      height: 100%;
    }
  }
  
  // 商品信息区域的样式
  .goods-info-box {
    padding: 10px;
    padding-right: 0;
    .price {
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }
    .goods-info-body {
      display: flex;
      justify-content: space-between;
      .goods-name {
        font-size: 13px;
        padding-right: 10px;
      }
      // 收藏区域
      .favi {
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }
    // 运费
    .yf {
      margin: 10px 0;
      font-size: 12px;
      color: gray;
    }
  }
  
  .goods_nav {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
  }
  
  .goods_detail-container {
    padding-bottom: 50px;
  }
</style>
